- Dry conditions will continue for the next several days with mild highs in the 70s and seasonally cool lows in the 40s.
- Chance of light rain on Sunday and Sunday night, mainly in the Plateau and southern TN Valley.
- A return to dry and mild weather for the first couple of days next week, then rain chances return for midweek.
Discussion
Issued at 103 PM EDT Thu Oct 29 2026
For the next few days, the pleasant fall weather will continue. A mid/upper level shortwave ridge will be crossing the region through Friday, with a low level ridge over the Appalachians. The main concern each day will be early morning fog, primarily near area lakes and rivers.
The upper ridge shifts east and a shortwave trough approaches from the west on Sunday. Moisture and lift will be mainly in the mid and upper levels, while the sub-850 mb layer remains dry for the eastern half of the area. Some light rain will likely reach the ground in the Plateau and southern TN Valley, maybe a tenth to a quarter inch, but NE sections will probably only see a trace to a couple hundredths through Sunday night. Overcast mid/high clouds on Sunday will hold high temperatures back in the 60s in most spots.
Dry and mild conditions return Monday and continue through at least Tuesday, possibly Wednesday. Another stronger system may bring higher rain chances to the area late Wednesday and Thursday. The ECMWF shows a deep, negatively tilted trough crossing the Plains and MS Valley in this time frame. One thing to keep an eye on with this system will be mountain wave winds, mainly Wednesday night.
Aviation
(18Z TAFS) Issued at 103 PM EDT Thu Oct 29 2026
Not much has changed in the weather pattern over the past few days, so fog will be possible again at CHA and TRI tonight. There is a chance that high clouds spreading over the area may reduce fog potential tonight, which raises uncertainty. For now, will include a TEMPO at both sites for a little MVFR fog, but lower conditions are certainly possible with later TAF issuances.
What is the high temperature today in Louisville, TN 37922?
The National Weather Service forecast for this afternoon calls for a high near 75°F. Sunny.
Will it rain in Louisville, TN 37922 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Louisville, TN 37922?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 70°F to 72°F and up to a 44% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Louisville, TN 37922 today?
Sunrise is about 7:56 AM EDT and sunset is about 6:43 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Louisville, TN 37922?
At Knoxville Mcghee Tyson AP, the 1991 to 2020 normal high in October is 72°F and the normal low is 49°F.
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